Even strong swimmers get tired. And if you doggie paddle into an unexpected current, or get separated from your waterfaring vessel, life jacket or not you may have some trouble getting yourself back to shore. Tom Agapiades created the Kingii as a low-profile complement to water baby pursuits. The wearable device secures at the wrist and, at the pull of a lever, releases an inflation bag that will pull you to the surface.

Kingii is powered by a replaceable CO2 cartridge, which detonates and inflates an 11" x 6" orange float on your cue. The wristband also has an attached whistle if you need more than a floatie's worth of help.

Once the CO2 cylinder is activated, the Kingii balloon inflates in seconds. Swap out used CO2 cartridges and you can reuse the device indefinitely.

Hyun Yeol Shin's Emergency Escape Filter is a pill that can save your life without ever swallowing it. It functions as a fire escape mask, but without the full-face mask apparatus that can be difficult and time consuming...

Beach balls are classic and rectangular rafts still keep you afloat, but the creativity, tech, and fat wallets of today demand a little more of water-based entertainment. Here are my picks for the Top 10 Water Toys of...

Scooters on land, not my thing. But a scooter underwater? I'm listening, AquatJet. The AquaJet H2 is a handheld underwater sea scooter, a wing-shaped gadget that propels riders through water at speeds of up to 5.6 mph...

Sometimes, actions speak louder than worries. Putting together a Kim Jong Un nuclear attack preparedness package doesn't just give us something to do besides sit around and worry about North Korea launching missiles and...

Here's a whale of a tale waiting to happen. Assemble Josh Tulberg's Rapid Whale Mini Boat kit, and the "It was a dark and stormy night"s will surely start pouring in. Imagine the adventures you'll have on the high seas...

The HyperWhistle takes its World's Loudest Whistle title not from Guinness, but from a mustachioed dude with a sound meter doing a review on YouTube. In the video, he hits a "personal best" 143 decibels with the HyperWhistle...

Ahhh. It's a see-through canoe/kayak that seats two and provides the perfect setting for a romantic, yet adventurous date of paddling the high seas and taking in all of its technicolored fishies, regally swaying anemones...

TRITON, the human gills design concept I showed you dudes here 2 years ago (and which many of you had mucho to say about in our comments section) is running a crowdfunding campaign to actually produce the equpiment. TRITONs...

You know those dreams you have where you're trying to run towards or away from something, but you just...can't...make...your feet...move? It's like running through quicksand, or setting concrete, or...on an underwater...

The Zerobody is a sensory deprivation float tank that removes the one major P in the A side effect of floating: getting wet. (True, drowning is kind of a pain too, but most of these tanks have only about a foot of water...

We've seen tents in the trees, so why not tents on the water? The Shoal tent combines the floating fun of an inflatable raft with the after hours coverage of a sealed, waterproof canopy. That I sure hope is stronger than...